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1、智课网GMAT备考资料MathSection-13------------------------------------------------------------------------------------------------------------Q1:ThepopulationofCityXis50percentofthepopulationofCityY.ThepopulationofCityXiswhatpercentofthetotalpopulationofCityXandCityY?A.2
2、5%1B.33%3C.40%D.50%2E.66%3Answer:------------------------------------------------------------------------------------------------------------Q2:Guy’snetincomeequalshisgrossincomeminushisdeductions.BywhatpercentdidGuy’snetincomechangeonJanuary1,1989,whenbothhisgr
3、ossincomeandhisdeductionsincreased?(1)Guy’sgrossincomeincreasedby4percentonJanuary1,1989.(2)Guy’sdeductionsincreasedby15percentonJanuary1,1989.A.Statement(1)ALONEissufficient,butstatement(2)aloneisnotsufficient.B.Statement(2)ALONEissufficient,butstatement(1)alon
4、eisnotsufficient.C.BOTHstatementsTOGETHERaresufficient,butNEITHERstatementALONEissufficient.D.EACHstatementALONEissufficient.E.Statements(1)and(2)TOGETHERareNOTsufficient.Answer:------------------------------------------------------------------------------------
5、------------------------Q3:Eachparticipantinacertainstudywasassignedasequenceof3differentlettersfromtheset{A,B,C,D,E,F,G,H}.Ifnosequencewasassignedtomorethanoneparticipantandif36ofthepossiblesequenceswerenotassigned,whatwasthenumberofparticipantsinthestudy?(Note
6、,forexample,thatthesequenceA,B,CisdifferentfromthesequenceC,B,A.)A.20B.92C.300D.372E.476Answer:------------------------------------------------------------------------------------------------------------Q4:OfthetotalamountthatJillspentonashoppingtrip,excludingta
7、xes,shespent50percentonclothing,20percentonfood,and30percentonotheritems.IfJillpaida4percenttaxontheclothing,notaxonthefood,andan8percenttaxonallotheritems,thenthetotaltaxthatshepaidwaswhatpercentofthetotalamountthatshespent,excludingtaxes?A.2.8%B.3.6%C.4.4%D.5.
8、2%E.6.0%Answer:------------------------------------------------------------------------------------------------------------Q5:Ifxandyarepositive,isx3>y?(1)x>y(2)x>yA.
